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Paclitaxel impurities and related standards

13 reference standards related to Paclitaxel held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

In this group: 11 impurity reference standards · 2 fine chemicals. CAS numbers are listed for 13 of 13; 11 entries carry a structure drawing.

Paclitaxel — related standards
CompoundCAS No.Catalogue No.FormulaMW
Paclitaxel Impurity 9 1186096-50-3 RS-P049002 C49H53NO16 911.94
Paclitaxel Impurity 11 132201-33-3 RS-P049003 C16H15NO4 285.29
Paclitaxel Impurity 17 135393-42-9 RS-P049004 C47H53NO15 871.92
Paclitaxel Impurity 21 146139-03-9 RS-P049005 C47H51NO14 853.91
Paclitaxel Impurity 49 146924-92-7 RS-P049006 C9H9NO2 163.17
Paclitaxel EP Impurity D 150547-36-7 RS-P049007 C45H53NO14 831.9
Paclitaxel Impurity 4 154083-99-5 RS-P049008 C29H36O11 560.59
Paclitaxel Impurity 24 171926-87-7 RS-P049009 C27H38O10 522.58
Paclitaxel Impurity 46 172018-16-5 RS-P049010 C29H36O10 544.23
2`-epi-Paclitaxel 179798-21-1 RS-P049011 C47H51NO14 853.91
2-Debenzoyl Paclitaxel 2-Pentanoate 213767-22-7 RS-P049012 C45H55NO14 833.92
Paclitaxel Impurity 31 92950-40-8 RS-P049013 C49H53NO15 895.95
Paclitaxel EP Impurity E 105454-04-4 RS-P049001 C47H51NO14 853.91

Structures

Frequently asked

How many Paclitaxel-related reference standards do you hold?
13 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 13 of them and 11 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Paclitaxel impurity that is not listed here?
Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.
What documentation is supplied with Paclitaxel impurities?
Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.
Do you publish prices or a lead time for Paclitaxel impurities?
No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.

Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to [email protected].